Magnetic lamp holder



Patented. .15.11.31, 1922.

` A'ITORNEYS HOWARD C. JENKINS, 0F LOS ANGELES, CALIFORNIA,

ASSIGNOR T0 A.

PARKFORD, 0F LOS ANGELES, GALIFORNIA.

MAGNETIC LAMP HOLDER. A

Application filed Apri120, 1920. Serial No, 375,373.

To all whom it may cof/wem.'

Be it known that I, HOWARD C. JENKINS, a citizen of the United States,residing at Los Angeles, in the county of Los Angeles and State ofCalifornia, have-invented new and useful Improvements in Magnetic LampHolders, of which the following is a specification.

This invention is a magnetic lamp holder arranged to provide a protectorfitting over an ordinary incandescent lamp, the protector beingadjustably supported by a permanent magnet arranged for removablyholding the protector and the lamp carried thereby upon any convenientmetallic support.

lt is the object of the invention to provide a simple and inexpensiveconstruction wherein the lamp protector may be swung to adjustedpositions relative to the. supporting magnet and readily clamped in suchad- ,justed positions.

Further objects of the invention will be understood from the followingdescription of the accompanying drawings in'which Figure 1 is a sideelevation of the invention showing, by means of full lines and dottedlines, different adjusted positions of the lamp and its protector.

Fig. 2'is a section on the line 2--2 of Fi 1.

n the drawings the glass bulb of an ordinary incandescent lamp is shownat 1, th1s lamp being arranged to be incased 1n a protector having abase 2 and wires 3 mounted thereon in spaced relation and arranged toform a protecting casing fitting around the sides of the lamp. Base 2surrounds the usual socket 1a that supports the lamp vbulb 1. The wires3 may terminate in an annular member 4 positioned over the end of thelamp. The connection between the supporting means and this protectingcasing for the lamp may comprise an end member, preferably, removablysecured on the protecting casing and shown as comprismg radially eX-tending arms 5 having spring clip ends 6 adapted to be engaged over theedge of the annular' member 4 of the protecting casing for removablyholding this end member in position. An internally threaded socket isprovided upon this end member, preferably, at the center thereof asshown at 7.

The protecting casing, as thus described,

and the lamp carried thereby are arranged to p Specification of LettersPatent.

Patented Jan. 31, 1922.

be supported by a magnet adapted to be secured by magnetism to anysuitable supporting surface. The magnet may be either an electro-magnetor a pennanentmagnet.

In the present embodiment of the invention the magnet is illustrated asa permanent magnet shown at 8, the supporting connection being,preferably, an adjustable connection between the magnet and theprotectlng casingfor varying the position of the lamp and lts protectingcasing relative to the magnet. This adjustable connection may comprise arod 9 having threaded engagement in the socket 7 and provided'at itsopposite end with a concave socket 10 in which a ball 11 upon the end ofa supporting rod 12 is arranged to be clamped in adjusted positions. Therod 12 is supported by the magnet 8 which is, preferably, a usualhorseshoe magnet having the base 8 and the arms 8 and 8b. forming therespective poles of the magnet. The. supporting rod 12is, preferably,connected to the base of the magnet as by the threaded connection 13.

A clamping collar 14 fits over the ball l1 and is held thereon by theflanged edge l5 of the collar, this collar bein arranged for threadedengagement with t e supporting rod 9 for clamping the ball 11 againstthe concave surface l0 of the supporting rod 9. This threaded connectionis shown, at 15 the portion of the supporting rod 9 below said threadedconnection being, preferably, enlarged as shown at 16 to provide asurface arranged to be grasped when tightening the clamping collarrelative to the rod.

By the construction as thus dcribed it will be seen that the supportingrod 9 and the protecting casing and the lamp supported therein may beswung to various positions relative to the supporting rod 12, as clearlyshown in dotted and full lines in Fig. 1, and the rod 9 may then beclamped in such adjusted positions by screwing the collar 14 down uponthe rod 9, thereby clamping the ball of the 'supporting rod 12 betweenthe concave surface 10 of the rod 9v and the flanged shoulder 15 of theclamping collar 14.

The lamp and its protecting casing having been adjusted relative to themagnet 8, the lamp holder may be supported from any convenient metallicsupport by placing the ends of the poles of the magnet against the icometallic support so that the magnet and the lamp and its protectingcasing are held against the support.

Various changes ma be made without departing from the spint of theinvention as claimed.

What is claimed is:

1. A magnetic lamp holder comprising aL cage adapted to enclose the bulbof an electric lamp, a portion of which cage is adapted to encircle thelamp socket, a magnet, a connection from said magnet to the end of thecage opposite the end that engages the socket of the lamp, and auniversal joint in the con nection between the magnet and cage.

2. The combination with la lamp socket of a lamp, a protector fittingover said lamp and socket, and a supporting magnet connected to saidprotector and projecting beyond the same opposite the lamp socket.

3. The combination with a lamp socket of a lamp, a protector fittingover said lamp and socket, a supporting magnet, a ball-andsocket jointconnection between said magnet and lamp protector, a part of saidball-andsocket joint being adjustable soas to clamp another part of saidjoint for supporting the lamp in adjusted positions, said magnetprojecting from the protector opposite the lamp socket.

4. A Alamp holder comprising a magnet, a lamp protector fitting over alamp andsupported by said magnet, a removable end cap on said protector,and an adjustable connection between saidend cap and magnet forsupporting said lamp in adjusted positions relative to said magnet.

In testimony whereof I have signed my name tov this specification.

HOWARD C. JENKINS.

